CN212642877U - Gas production device for diesel engine air pump - Google Patents
Gas production device for diesel engine air pump Download PDFInfo
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- CN212642877U CN212642877U CN202021499218.3U CN202021499218U CN212642877U CN 212642877 U CN212642877 U CN 212642877U CN 202021499218 U CN202021499218 U CN 202021499218U CN 212642877 U CN212642877 U CN 212642877U
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Abstract
The utility model belongs to the technical field of the diesel engine, concretely relates to diesel engine air pump gas production device, include: the air pump is arranged on a mounting seat of the diesel engine, an air inlet pipe is connected to an air inlet on the right side of the air pump, and an air inlet on the left side of the air pump is plugged by a screw plug; and one end of the air inlet bent pipe is communicated with the air inlet pipe, the other end of the air inlet bent pipe is communicated with the crankcase oil-gas separator, and the crankcase oil-gas separator is arranged on the right side of the air pump. The air pump gas production device of this scheme of adoption has effectively solved among the prior art diesel engine air pump when using, inhales more machine oil mist in the return bend that admits air, causes the problem that the desicator bottom has the greasy dirt to ooze among the chassis compressed gas piping system.
Description
Technical Field
The utility model belongs to the technical field of the diesel engine, concretely relates to diesel engine air pump gas production device falls.
Background
The air pump of BF12L513C series diesel engine is installed at the flywheel end, and the air collecting device is that the air inlet of the air pump is connected to the left air inlet bent pipe through a rubber corrugated pipe to collect air from the air inlet bent pipe. Because the left air inlet bent pipe of the diesel engine is also connected with a breather pipe of a crankcase gas-oil separator (respirator), the breather pipe discharges engine oil mist in the crankcase into the left air inlet bent pipe of the diesel engine, so that the engine oil mist participates in the secondary combustion of the diesel engine. Because the content of the engine oil mist in the waste gas of the crankcase is higher, the engine oil mist in the gas sucked into the air pump from the left side can be higher by entering the left air inlet bent pipe through the breather pipe, so that the engine oil generated after the engine oil mist is compressed by the air pump enters the dryer along with the compressed gas, and the oil stain at the bottom of the dryer in the compressed gas pipeline system of the chassis is leaked.
In view of the above, there is a need to improve an air collecting device of a diesel engine air pump in the prior art, so as to solve the problem that oil stains seep out from the bottom of a dryer in a chassis compressed air pipeline system due to more engine oil mist sucked into an intake elbow when the diesel engine air pump is in use.
Disclosure of Invention
The utility model aims to solve among the prior art diesel engine air pump and when using, inhale more machine oil mist in the return bend that admits air, cause the problem that the desicator bottom has the greasy dirt to ooze among the chassis compressed gas pipe-line system, provide a diesel engine air pump gas production device.
Realize the utility model discloses the technical scheme of purpose as follows:
an air pump gas production device of a diesel engine comprises:
the air pump is arranged on a mounting seat of the diesel engine, an air inlet pipe is connected to an air inlet on the right side of the air pump, and an air inlet on the left side of the air pump is plugged by a screw plug;
and one end of the air inlet bent pipe is communicated with the air inlet pipe, the other end of the air inlet bent pipe is communicated with the crankcase oil-gas separator, and the crankcase oil-gas separator is arranged on the right side of the air pump.
Furthermore, an oil-gas separation filter element is arranged in the air inlet elbow.
Furthermore, a fixing clamp is arranged in the middle of the air inlet pipe and fixed on the diesel engine through bolts.
Furthermore, the air inlet pipe adopts a rubber corrugated pipe.
Furthermore, the air inlet bent pipe is obliquely arranged, and one end of the air inlet bent pipe, which is connected with the air inlet pipe, is lower than one end of the air inlet bent pipe, which is connected with the crankcase oil-gas separator.
Furthermore, the air inlet pipe is connected with the air inlet elbow pipe through a flange, an annular bulge is arranged at the pipeline connecting end of the flange, a sealing groove is formed in the outer wall of the annular bulge, and a sealing ring is arranged in the sealing groove.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a diesel engine air pump gas production device, tear open through the intake pipe with on the original air pump, on the plug on the return bend that admits air with the right side tears open and the shutoff to left return bend that admits air, change the intake pipe that a length is longer and install on the return bend that admits air on right side, effectively solved in the return bend that admits air and caused among the chassis compressed gas pipe-line system desiccator bottom have the problem that the greasy dirt oozes because of inhaling more machine oil mist, fundamentally has solved chassis compressed gas pipe-line system desiccator bottom greasy dirt and has oozed the phenomenon, make its drying normal, no greasy dirt oozes.
Drawings
FIG. 1 shows a gas production device of a diesel engine gas pump according to the present invention;
wherein, 1, an air pump; 2. an air inlet pipe; 3. an air inlet bent pipe; 4. and an oil-gas separator of a crankcase.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1
Referring to fig. 1, the diesel engine air pump gas production device of the present embodiment includes: the air pump 1 is installed on an installation seat of the diesel engine, an air inlet pipe 2 is connected to an air inlet on the right side of the air pump 1, and an air inlet on the left side of the air pump 1 is plugged by a screw plug; and the air inlet bent pipe 3 is connected with the air inlet pipe 2 at one end, and is connected with the crankcase oil-gas separator 4 at the other end, and the crankcase oil-gas separator 4 is arranged on the right side of the air pump 1.
Because the air inlet bent pipe 3 positioned on the left side of the diesel engine is also connected with the breather pipe of the oil-gas separator of the crankcase, the breather pipe can discharge the engine oil mist in the crankcase into the air inlet bent pipe 3 positioned on the left side of the diesel engine, so that the engine oil mist participates in the secondary combustion of the diesel engine, and the engine oil formed after the sucked engine oil mist is compressed by the air pump enters the dryer along with the compressed air, so that oil stains are leaked out from the bottom of the dryer in a chassis compressed air pipeline system, and the oil leakage phenomenon is caused.
Therefore, through the experiment and the effect comparison, the inventor finds that the air inlet pipe on the original air pump 1 is detached, the plug on the air inlet bent pipe on the right side is detached and plugged on the air inlet bent pipe on the left side, the air inlet pipe 2 with a longer length is replaced and installed on the air inlet bent pipe 3 on the right side, the air inlet pipe 2 is communicated with the rear end respirator, and the oil gas content of the breather pipe of the front end respirator is obviously greater than that of the rear end respirator; in addition, the respirator mounting position of the rear end is higher than that of the front end respirator. After the device is improved, a chassis running test of a BF12L513C series diesel engine is carried out, the bottom of a chassis compressed gas pipeline system dryer is normal, no oil stain overflows, and the effect is obvious.
Example 2
Compared with the embodiment 1, the diesel engine air pump gas production device of the embodiment further comprises an oil-gas separation filter element installed in the air inlet bent pipe 3, the air inlet bent pipe 3 is arranged in an inclined mode, and one end, connected with the air inlet pipe 2, of the air inlet bent pipe 3 is lower than one end, connected with the crankcase oil-gas separator 4, of the air inlet bent pipe 3.
At 3 internally mounted oil-gas separation filter cores of return bend that admits air, the oil-gas separation filter core can filter the diameter suspension oil particle below 1um, mainly filters through the micron and the fine filter bed of glass of oil-gas separation filter core, further guarantees the passing through of 3 indoor machine oil mist of return bend that admit air. In addition, with the setting of the 3 slopes of return bend of admitting air to guarantee that the return bend of admitting air 3 connects the one end of intake pipe 2 and be less than the return bend of admitting air 3 is connected crankcase oil and gas separator 4's one end is being used for a long time when return bend 3 of admitting air to oil drops that oil mist formed can make machine oil can't get into intake pipe 2 under the action of gravity under the isolation of oil-gas separation filter core, consequently effectively avoided the outer hourglass phenomenon of greasy dirt.
As a further optimization of the scheme, a fixing clamp is arranged in the middle of the air inlet pipe 2 and fixed on the diesel engine through bolts. The fixing clamp is arranged in the middle of the air inlet pipe 2 to fix the air inlet pipe 2, so that the problem that the normal work of a diesel engine is influenced due to the fact that the pipe is easily bent due to the fact that the air inlet pipe 2 is too long is avoided.
Furthermore, the air inlet pipe 2 is made of rubber bellows. Adopt rubber bellows as the intake pipe, can increase the life of intake pipe to rubber bellows can make appropriate adjustment according to gaseous pressure size, and its sensitivity is high and sealing performance is good.
In addition, the air inlet pipe 2 is connected with the air inlet elbow 3 through a flange, an annular bulge is arranged at the pipeline connecting end of the flange, a sealing groove is formed in the outer wall of the annular bulge, and a sealing ring is arranged in the sealing groove. Specifically, install the flange on the port that intake pipe 2 and air intake return bend 3 are connected respectively to the one end that meets at flange and pipeline sets up annular protrusion, and process an annular groove on the bellied outer wall of annular, seal the annular groove through the sealing washer, during the concrete use, annular protrusion is located inside the pipeline, is provided with the fixed orifices on the fixed edge of flange, carries out fixed connection through the bolt between two flanges, in order to guarantee steadiness and the leakproofness of linking between two pipelines.
As a further improvement of the scheme, a negative pressure valve is arranged on the crankcase oil-gas separator 4 to ensure the balance of the pressure in the crankcase oil-gas separator 4. Specifically, the negative pressure valve is welded to the rear cover of the crankcase gas-oil separator 4.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a diesel engine air pump gas production device which characterized in that includes:
the air pump (1) is mounted on a mounting seat of the diesel engine, an air inlet pipe (2) is connected to an air inlet on the right side of the air pump (1), and an air inlet on the left side of the air pump (1) is plugged by a screw plug;
the air pump comprises an air inlet bent pipe (3), one end of the air inlet bent pipe (3) is communicated with the air inlet pipe, the other end of the air inlet bent pipe is communicated with an oil-gas separator (4) of the crankcase, and the oil-gas separator (4) of the crankcase is arranged on the right side of the air pump (1).
2. The diesel engine air pump gas production device according to claim 1, characterized in that an oil-gas separation filter element is installed in the air inlet elbow (3).
3. The diesel engine air pump gas production device according to claim 2, wherein a fixing clamp is arranged in the middle of the air inlet pipe (2), and the fixing clamp is fixed on the diesel engine through a bolt.
4. The air pump air production device of the diesel engine as claimed in claim 1, wherein the air inlet pipe (2) is made of rubber bellows.
5. The air pump air production device of the diesel engine according to claim 3, characterized in that the air inlet elbow (3) is arranged obliquely, and one end of the air inlet elbow (3) connected with the air inlet pipe (2) is lower than one end of the air inlet elbow (3) connected with the crankcase gas-oil separator (4).
6. The gas production device of the air pump of the diesel engine according to claim 5, wherein the air inlet pipe (2) is connected with the air inlet elbow (3) through a flange, an annular bulge is arranged at the pipeline connecting end of the flange, a sealing groove is arranged on the outer wall of the annular bulge, and a sealing ring is arranged in the sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021499218.3U CN212642877U (en) | 2020-07-27 | 2020-07-27 | Gas production device for diesel engine air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021499218.3U CN212642877U (en) | 2020-07-27 | 2020-07-27 | Gas production device for diesel engine air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212642877U true CN212642877U (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021499218.3U Active CN212642877U (en) | 2020-07-27 | 2020-07-27 | Gas production device for diesel engine air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212642877U (en) |
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2020
- 2020-07-27 CN CN202021499218.3U patent/CN212642877U/en active Active
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